Drum-type sand blasting machine

Abstract

The drum-type sand blasting machine comprises a machine box, the machine box is provided with a sand blasting chamber, a drum capable of rotating around the axis of the drum is arranged in the middle of the sand blasting chamber in a turnover mode, and the sand blasting chamber is sequentially provided with a feeding port, a sand blasting assembly and a discharging box along the turnover circumference of the drum. A feeding position, a sand blasting position and a discharging position facing the feeding port, the sand blasting assembly and the discharging box are formed in the roller in the overturning process, and the roller can be freely switched among the feeding position, the sand blasting position and the discharging position so that parts to be machined can be poured into the discharging box after being subjected to sand blasting machining. The whole structure is small, manual feeding and discharging are not needed, and the whole machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of sandblasting machine technology, and more particularly to a drum-type sandblasting machine. Background Technology

[0002] Sandblasting machines primarily utilize high-speed moving sand particles to blast the surface of objects, thereby improving their surface quality. In existing sandblasting technology, a spray gun is used to blast the workpiece, while simultaneously rotating the workpiece or the spray gun to achieve uniform sandblasting treatment of the workpiece's outer surface.

[0003] For small parts, it is difficult to fix each part in place. Therefore, a drum blasting machine is often used. A drum holds the parts, and as the drum rotates during blasting, the angle of the parts changes, resulting in uniform sandblasting of the surface. A typical structure is an automatic drum blasting machine disclosed in Chinese invention patent number CN109129208B. While this drum-type sandblasting machine achieves rapid surface treatment of small parts, the small size of the parts and the inconvenience of loading and unloading still limit the overall processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drum-type sandblasting machine with a compact structure that improves overall processing efficiency.

[0005] The technical solution to achieve the objective of this invention is:

[0006] A drum-type sandblasting machine includes a casing with a sandblasting chamber. A drum that rotates around its own axis is rotatably mounted in the center of the sandblasting chamber. A feed inlet, a sandblasting assembly, and a discharge box are sequentially arranged along the rotating circumference of the drum. During the rotation process, the drum forms a feeding position, a sandblasting position, and a discharge position facing the feed inlet, the sandblasting assembly, and the discharge box, respectively. The drum can freely switch between the feeding position, the sandblasting position, and the discharge position to pour the parts to be processed into the discharge box after sandblasting.

[0007] Furthermore, the roller oscillates back and forth along its flipping path at the sandblasting position.

[0008] Furthermore, the sandblasting chamber is equipped with a main shaft rotatably mounted on the chassis. One end of the main shaft is connected to a first motor fixedly mounted on the chassis, and a mounting base is fixedly mounted in the middle. The roller is rotatably mounted on one side of the mounting base, and a second motor is fixedly mounted on the other side of the mounting base. The output shaft of the second motor is coaxially fixedly connected to the roller.

[0009] Furthermore, the feed inlet is located at the top of the sandblasting chamber, and a lifting device is provided on the side of the machine housing, with the outlet of the lifting device facing the feed inlet.

[0010] Furthermore, the lifting device includes a fixed frame with a chain elevator inclinedly mounted on it. Both sides of the chain elevator are provided with chutes, and the top of the chutes has a downwardly inclined extension section with a rounded transition. A feeding box is provided between the two chutes. The top and bottom of the side wall of the feeding box are respectively provided with a first rolling element and a second rolling element. The first rolling element is located in the chutes, and the second rolling element is connected to the chain elevator and is adapted to drive the feeding box to move through the chain elevator.

[0011] Furthermore, a guide plate is fixedly mounted at the bottom of the extension section.

[0012] Furthermore, the sandblasting assembly is vertically and retractably mounted on top of the sandblasting chamber.

[0013] Furthermore, a support base is fixedly mounted on the top of the chassis, a vertically arranged slide rail is fixedly mounted on the side of the support base, a cylinder is fixedly mounted on the top, a guide rod is slidably mounted on the slide rail, the upper end of the guide rod is fixedly connected to the piston rod of the cylinder, and the lower end is fixedly connected to the sandblasting assembly.

[0014] Furthermore, the feeding box is movably located at the bottom of the sandblasting chamber, and the front of the machine housing is provided with an opening and closing discharge door suitable for the feeding box to enter and exit. Below the discharge door is a sand collection box fixedly mounted on the machine housing.

[0015] Furthermore, a dust collection chamber is connected to the lower part of the sandblasting chamber, and an auger elevator is connected to the bottom of the dust collection chamber. A cyclone separator is connected to the outlet of the auger elevator, the bottom of the cyclone separator is connected to the sandblasting assembly, and a dust collector is connected to the top exhaust port.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] (1) The present invention optimizes the traditional structure of the roller that can only rotate around itself into a structure that can both rotate and flip freely. The feed port, sandblasting component and unloading box are set sequentially along the flipping path of the roller, thereby realizing the free switching of the roller between the feed position, sandblasting position and unloading position. When the roller is in the feed position, it receives the delivered parts, then flips to the sandblasting position to rotate and the sandblasting component performs the sandblasting operation. Finally, it flips to the unloading position to transfer the surface-treated parts to the unloading box. The overall structure is compact and does not require manual loading and unloading, thus improving the overall processing efficiency.

[0018] (2) The present invention further optimizes the roller located at the sandblasting position into a structure that can reciprocate and swing, so that the position of the part changes more frequently in the roller, thereby further improving the surface treatment effect of the part.

[0019] (3) The present invention uses two motors to drive the drum to flip and rotate respectively. The structure is simple. The movement control of the drum can be realized by controlling the movement of the motors. The background control logic is simple and the manufacturing cost is low.

[0020] (4) By adding a lifting device, the present invention automatically feeds the material from a low position to the feed port located at the top of the sandblasting chamber. It requires the construction of a two-layer feeding platform to further improve the degree of automation and reduce the labor intensity of feeding workers.

[0021] (5) The present invention optimizes the structure of the traditional chain elevator by adding a chute with a downwardly inclined extension section at the top and setting a rolling body in rolling cooperation with the chute on the upper side wall of the feeding box. When the feeding box is lifted to the top by the chain elevator, the first rolling body moves down along the chute, realizing the automatic tilting of the feeding box and thus sending the parts to the feed port.

[0022] (6) By adding a guide plate, the present invention enables the parts to fall completely into the feed port, thus avoiding spillage.

[0023] (7) The present invention sets the sandblasting component as a liftable structure, which can adjust the distance between it and the part to be treated according to the needs, so as to achieve a better surface treatment effect.

[0024] (8) The material box of the present invention is movable and can be directly taken out by manpower through the discharge door to transfer the processed parts. At the same time, a sand collection box is set at the discharge door to prevent sand from being brought out when the material box is taken out, thus polluting the workshop environment.

[0025] (9) The present invention realizes the recycling of sandblasting through auger hoist and removes dust simultaneously through dust collector, saving sandblasting costs, eliminating manual cleaning operations, and improving the environment of sandblasting workshop. Attached Figure Description

[0026] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a rear view of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the sandblasting chamber of the present invention;

[0030] Figure 4 This is a diagram showing the feeding box of the present invention located at the top of the lifting device;

[0031] Figure 5 This is a diagram showing the feeding box of the present invention located at the bottom of the lifting device.

[0032] The labels in the attached diagram are:

[0033] 1. Chassis; 2. Drum; 3. Feed inlet; 4. Sandblasting assembly; 5. Feed box; 6. Dust collection chamber; 7. Screw elevator; 8. Cyclone separator; 9. Dust collector; 10. Main shaft; 11. First motor; 12. Mounting base; 13. Second motor; 14. Frame; 15. Chain elevator; 16. Slide rail; 16-1 extension section; 17. Feed box; 17-1 first rolling element; 17-2 second rolling element; 18. Guide plate; 19. Support base; 20. Slide rail; 21. Guide rod; 22. Discharge gate; 23. Sand collection box. Detailed Implementation

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] (Example 1)

[0036] like Figures 1 to 5 The drum-type sandblasting machine shown includes a casing 1 with a sandblasting chamber. A drum 2, which rotates around its own axis, is rotatably mounted in the middle of the sandblasting chamber. A feed inlet 3, a sandblasting assembly 4, and a discharge box 5 are arranged sequentially along the rotating circumference of the drum 2. During the rotation process, the drum 2 forms a feeding position, a sandblasting position, and a discharge position facing the feed inlet 3, the sandblasting assembly 4, and the discharge box 5, respectively. The drum 2 can freely switch between the feeding position, the sandblasting position, and the discharge position to pour the parts to be processed into the discharge box 5 after sandblasting. The overall structure is compact and does not require manual loading and unloading, thus improving the overall processing efficiency.

[0037] Specifically, a dust collection chamber 6 is connected to the lower part of the sandblasting chamber, and an auger elevator 7 is connected to the bottom of the dust collection chamber 6. The outlet of the auger elevator 7 is connected to a cyclone separator 8, realizing the recycling of sandblasting and saving sandblasting costs. The bottom of the cyclone separator 8 is connected to the sandblasting assembly 4, and the top exhaust port is connected to a dust collector 9, realizing simultaneous dust removal, eliminating manual cleaning operations, and improving the environment of the sandblasting workshop.

[0038] The sandblasting chamber houses a main shaft 10 rotatably mounted on a housing 1. One end of the main shaft 10 is connected via a gear assembly to a first motor 11 fixedly mounted on the housing 1. A mounting base 12 is fixedly mounted in the middle of the main shaft 10. A drum 2 is rotatably mounted on one side of the mounting base 12, and a second motor 13 is fixedly mounted on the other side of the mounting base 12. The output shaft of the second motor 13 is coaxially connected to the drum 2. The first motor 11 drives the main shaft 10 to rotate, thereby causing the drum 2 to rotate. The second motor 13 drives the drum 2 to rotate on its own axis. The overall structure is simple; by controlling the motor movement, the drum 2 can freely switch between the feeding position, sandblasting position, and unloading position, as well as rotate on its own axis in the sandblasting position.

[0039] A lifting device is provided on the side of the casing 1. The outlet of the lifting device is directly opposite the feed inlet 3, which is located at the top of the sandblasting chamber and is funnel-shaped, facilitating the precise falling of parts into the roller 2 below. The lifting device includes a fixed frame 14, on which a chain elevator 15 is inclinedly mounted. Both sides of the chain elevator 15 are provided with chutes 16, and the top of the chutes 16 has a downwardly inclined extension section 16-1 with a rounded transition. A loading box 17 is provided between the two chutes. The top and bottom of the side wall of the loading box 17 are respectively provided with a first rolling element 17-1 and a second rolling element 17-2. The first rolling element 17-1 is located in the chutes 16 and rolls along the chutes 16. The second rolling element 17-2 is connected to the chain elevator 15 and rolls along the track of the chain elevator 15 and is connected to the chain of the chain elevator 15. Thus, the loading box 17 gradually rises under the drive of the chain elevator 15. The chute 16 is set along the lifting direction of the feeding box 17. When the feeding box 17 moves upward to the first rolling element 17-1 and enters the extension section 16-1, the feeding box 17 gradually tilts to complete the tilting action of the parts. After tilting, the feeding box 17 returns along the original path under the action of the chain elevator 15. The stroke endpoint is limited by a limit switch, which is prior art and will not be described in detail here. To prevent parts from spilling, a guide plate 18 is fixedly installed at the bottom of the extension section 16-1 in this embodiment. The guide plate 18 gathers the poured parts and allows them to fall completely into the feed inlet 3.

[0040] To achieve better sandblasting results, in this embodiment, the sandblasting assembly 4 is mounted on the top of the sandblasting chamber in a height-adjustable manner. Specifically, a support base 19 is fixedly mounted on the top of the housing 1, and a vertically arranged slide rail 20 is fixedly mounted on the side of the support base 19. A cylinder is fixedly mounted on the top, and a guide rod 21 is slidably mounted on the slide rail. The upper end of the guide rod 21 is fixedly connected to the piston rod of the cylinder, and the lower end is fixedly connected to the sandblasting assembly 4. By raising and lowering the sandblasting assembly 4 via the cylinder and the guide rod 21, the distance between the sandblasting assembly and the workpiece to be processed can be adjusted. The appropriate distance can be adjusted according to the sandblasting process requirements, making it more flexible to use. The sandblasting assembly 4 can include multiple spray guns to improve sandblasting efficiency. In addition, to improve sandblasting uniformity, in this embodiment, by controlling the movement of the first motor 11, the roller 2 is further configured to reciprocate along its rotation path at the sandblasting position. Preferably, the roller 2 reciprocates at an angle of 30° to 60° between its axis and the horizontal line.

[0041] The feeding box 5 is movably located at the bottom of the sandblasting chamber. The front of the machine housing 1 is provided with an opening and closing discharge door 22 suitable for the feeding box 5 to enter and exit. The feeding box 5 can be directly removed manually through the discharge door 22 to transfer the processed parts. Below the discharge door 22 is a sand collection box 23 fixed to the machine housing 1 to prevent sand from being brought out when the feeding box 5 is removed, thus avoiding pollution of the workshop environment.

[0042] This invention optimizes the traditional structure of the roller 2, which can only rotate around itself, into a structure that can both rotate and flip freely. The feed inlet 3, sandblasting component 4, and unloading box 5 are arranged sequentially along the flipping path of the roller 2, thereby enabling the roller 2 to freely switch between the feeding position, sandblasting position, and unloading position. When the roller 2 is in the feeding position, it receives the delivered parts, then flips to the sandblasting position to perform a rotating and swinging motion, where the sandblasting component 4 performs the sandblasting operation. Finally, it flips to the unloading position to transfer the surface-treated parts to the unloading box 5. The overall structure is compact, eliminates the need for manual loading and unloading, and improves the overall processing efficiency.

[0043] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drum-type sandblasting machine, characterized in that: The device includes a casing, which has a sandblasting chamber. The middle of the sandblasting chamber has a rotatable roller that rotates around its own axis. The sandblasting chamber has a feed inlet, a sandblasting assembly, and a discharge box arranged sequentially along the rotating circumference of the roller. During the rotation process, the roller forms a feeding position, a sandblasting position, and a discharge position facing the feed inlet, the sandblasting assembly, and the discharge box, respectively. It can freely switch between the feeding position, the sandblasting position, and the discharge position to pour the parts to be processed into the discharge box after sandblasting.

2. The drum-type sandblasting machine according to claim 1, characterized in that: The roller oscillates back and forth along its flipping path at the sandblasting position.

3. A drum-type sandblasting machine according to claim 2, characterized in that: The sandblasting chamber is equipped with a main shaft that is rotatably mounted on the machine housing. A first motor that is fixedly mounted on the machine housing is connected to either end of the main shaft. A mounting base is fixedly mounted in the middle. The roller is rotatably mounted on one side of the mounting base. A second motor is fixedly mounted on the other side of the mounting base. The output shaft of the second motor is coaxially fixedly connected to the roller.

4. A drum-type sandblasting machine according to claim 1, characterized in that: The feed inlet is located at the top of the sandblasting chamber, and a lifting device is provided on the side of the machine housing, with the outlet of the lifting device facing the feed inlet.

5. A drum-type sandblasting machine according to claim 4, characterized in that: The lifting device includes a fixed frame with a chain elevator inclinedly mounted on it. Both sides of the chain elevator are provided with chutes, and the top of the chutes has a downwardly inclined extension section with a rounded transition. A feeding box is provided between the two chutes. The top and bottom of the side wall of the feeding box are respectively provided with a first rolling element and a second rolling element. The first rolling element is located in the chutes, and the second rolling element is connected to the chain elevator and is adapted to drive the feeding box to move through the chain elevator.

6. A drum-type sandblasting machine according to claim 5, characterized in that: A guide plate is fixedly installed at the bottom of the extension section.

7. A drum-type sandblasting machine according to claim 1, characterized in that: The sandblasting assembly is retractably mounted on top of the sandblasting chamber.

8. A drum-type sandblasting machine according to claim 7, characterized in that: The top of the chassis is fixedly equipped with a support base, the side of the support base is fixedly equipped with a vertically arranged slide rail, the top is fixedly equipped with a cylinder, and a guide rod is slidably arranged on the slide rail. The upper end of the guide rod is fixedly connected to the piston rod of the cylinder, and the lower end is fixedly connected to the sandblasting assembly.

9. A drum-type sandblasting machine according to claim 1, characterized in that: The feeding box is movably located at the bottom of the sandblasting chamber. The front of the machine housing is provided with an opening and closing discharge door suitable for the feeding box to enter and exit. Below the discharge door is a sand collection box fixed on the machine housing.

10. A drum-type sandblasting machine according to claim 1, characterized in that: A dust collection chamber is connected to the bottom of the sandblasting chamber, and an auger elevator is connected to the bottom of the dust collection chamber. A cyclone separator is connected to the outlet of the auger elevator, and the bottom of the cyclone separator is connected to the sandblasting assembly. A dust collector is connected to the top exhaust port.

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